Questions tagged [polymers]
For questions about synthetic or natural polymers, their chemical or physical properties, and their synthesis, etc.
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Could this glassy "Amber-Like" polymer used to store DNA be exposed to sunlight?
An interesting article, that I came across today, talked about the ongoing research into storing DNA at room temperature essentially with glassy "amber-like" polymers. Before talking about ...
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What role does CaCl2 play in a gelation medium?
To produce sodium alginate beads coated with chitosan, following procedure was undertaken:
Sodium alginate was dissolved in distilled water at a concentration of 4% (...) The gelation medium was ...
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drying polymers / FDM 3D printer filaments
My understanding is PLA can absorb 1%, and some others (ABS?) can absorb up to 10% moisture. In order to dry a polymer, is additional (more than room temperature) heat needed (like a filament dryer/...
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Biodegradability of Polymers
Nylon-6 is a polymer of 5-amino caproic acid (although it is generally prepared by hydrolysis of caprolactam) and Nylon-2-Nylon-6 is a copolymer of glycine and 5-amino caproic acid.
While Nylon-2-...
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Synthesis of polypropylene
So, I have two questions regarding the synthesis of polypropylene:
I have tried looking everywhere but couldn't find a detailed mechanism for the termination step of the synthesis of polypropylene (...
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What is 'spray foam' or 'expanding foam'?
At the wikipedia are:
Spray foam (expanding foam in the UK) is a chemical product created by two materials, isocyanate and polyol resin, which react when mixed with each other and expand up to 30-60 ...
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Difference between polyethylene sulfonate and Nafion?
Nafion is a cation-exchange membrane that I would like to build a chlor-alkali cell, but unfortunately it's crazy expensive(and comes in ridiculously large sizes). Its functional group, the sulfonate ...
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Replacing calcium acetate with sodium polyacrylate for homemade Sterno?
I was researching making canned heat using denatured(ethyl) alcohol, water, and calcium acetate from scratch.
However, it occured to me that sodium polyacrylate also absorbs water and alcohol and is ...
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Could polydiazene exist?
I am a bit new to the world of chemistry, and after messing around on ChemSpider, I had a thought. Could a polymer like this exist:
Due to VSEPR, it would be shaped pretty weirdly and N-N single ...
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Is there a name for polymer structures that resemble a foldable lattice?
I'm struggling to find the right descriptors for this, but it would look like this
I've been doing some layperson reading up on stretchy materials, and I know a lot of them work by the polymer chains ...
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Small-Angle X-Ray Scattering of Bulk Polymers
Does anyone have any recommendations on how to get useful information from SAXS of polymers when the system is not dilute?
This is the type of data we're working with:
My understanding is that since ...
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Chemical Mechanism Behind Water-Soluble Ink
I came across water-soluble ink pens designed for creating temporary fabric marks, particularly in cross-stitch stamping. These ink dissolve in water, transforming water into a colorful liquid, while ...
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Does polyamide react with hydrocarbons (group III engine oil) in its thermoplastic state?
I need to form (bend) thermoplastic polyamide hose in rubber jacket to a desired shape.
I can use heat gun but I thought for better results I could use heated to 150C group III engine oil (your ...
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liquid (solution or polymer) with a density of more than 1.35g/cm3 and with element atomic numbers less than 9
Search for a liquid (solution or polymer) with a density of more than $\pu{1.35 g/cm3}$ and containing only elements with an atomic number less than 9.
For example, a saturated solution of sugar in ...
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Can multispectral imaging be used for identification of materials, substituting for hyperspectral imaging?
Nowadays a lot of research and applications are using Hyperspectral Imaging for identification and segregation of plastics by material. But the cost of a HSI system is quite high.
Could a ...
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